US9184360B2ActiveUtilityA1

Light-emitting device

60
Assignee: GENESIS PHOTONICS INCPriority: May 27, 2013Filed: May 18, 2015Granted: Nov 10, 2015
Est. expiryMay 27, 2033(~6.9 yrs left)· nominal 20-yr term from priority
Inventors:Cheng-Yen ChenYi-Fan LiHan-Min WuKuan-Chieh HuangTung-Lin ChuangSheng-Yuan Sun
H10H 20/8581H10H 20/8514H10H 20/8506H10H 20/856H10H 20/8582H01L 33/642H01L 33/641H01L 33/60H01L 33/486H01L 33/505F21V 29/74F21Y 2115/10F21K 9/64
60
PatentIndex Score
0
Cited by
3
References
31
Claims

Abstract

A light-emitting device of the invention includes a base, at least one light-emitting element, a wavelength transferring cover and a heat-conducting structure. The light-emitting element is disposed on the base and electrically connected to the base. The wavelength transferring cover is disposed on the base and covers the light-emitting element. The heat-conducting structure is disposed on the base and directly contacts the wavelength transferring cover.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
       1. A light-emitting device, comprising:
 a base; 
 a wavelength converting structure, comprising:
 a heat-conducting structure comprising a plurality of accommodating spaces; and 
 a wavelength converting material filled in the accommodating spaces; and 
 
 at least one light-emitting element disposed on the base, wherein the base is connected to the heat-conducting structure, and the wavelength converting structure covers the light-emitting element. 
 
     
     
       2. The light-emitting device as claimed in  claim 1 , wherein material of the heat-conducting structure is selected from the group consisting of silver, gold, copper, platinum, tin, aluminium, carbon nanotube, graphene and combinations thereof. 
     
     
       3. The light-emitting device as claimed in  claim 1  further comprising:
 a heat-dissipating base, wherein the base is disposed on the heat-dissipating base. 
 
     
     
       4. The light-emitting device as claimed in  claim 3 , wherein material of the heat-dissipating base is selected from the group consisting of aluminium, tin, copper, silver, gold, ceramic and combinations thereof. 
     
     
       5. The light-emitting device as claimed in  claim 1  further comprising:
 a reflective material layer, disposed on the heat-conducting structure. 
 
     
     
       6. The light-emitting device as claimed in  claim 5 , wherein material of the reflective material layer is selected from the group consisting of silver, chromium, nickel, aluminium and combinations thereof. 
     
     
       7. The light-emitting device as claimed in  claim 5 , wherein the reflective material layer is a distributed Bragg reflector (DBR). 
     
     
       8. The light-emitting device as claimed in  claim 1 , wherein the wavelength converting material occupies 60%-95% of the surface of the wavelength converting structure. 
     
     
       9. A light-emitting device, comprising:
 a base having at least one light-emitting element mounted thereon; 
 a heat-conducting meshed frame connected to the base; and 
 a plurality of wavelength converting blocks embedded in meshes of the heat-conducting meshed frame, the wavelength converting blocks and the heat-conducting meshed frame covering the light-emitting element. 
 
     
     
       10. The light-emitting device as claimed in  claim 9 , wherein material of the heat-conducting meshed frame is selected from the group consisting of silver, gold, copper, platinum, tin, aluminium, carbon nanotube, graphene and combinations thereof. 
     
     
       11. The light-emitting device as claimed in  claim 9  further comprising:
 a heat-dissipating base, wherein the base is disposed on the heat-dissipating base. 
 
     
     
       12. The light-emitting device as claimed in  claim 11 , wherein material of the heat-dissipating base is selected from the group consisting of aluminium, tin, copper, silver, gold, ceramic and combinations thereof. 
     
     
       13. The light-emitting device as claimed in  claim 9  further comprising:
 a reflective material layer, disposed on the heat-conducting meshed frame. 
 
     
     
       14. The light-emitting device as claimed in  claim 13 , wherein material of the reflective material layer is selected from the group consisting of silver, chromium, nickel, aluminium and combinations thereof. 
     
     
       15. The light-emitting device as claimed in  claim 13 , wherein the reflective material layer is a DBR. 
     
     
       16. A light-emitting device, comprising:
 a base having at least one light-emitting element mounted thereon; 
 a wavelength converting layer; and 
 a light-transmissive and heat-conducting body connected to the base, wherein the wavelength converting layer is carried and covered by the heat-conducting body, and the wavelength converting layer and the heat-conducting body cover the light-emitting element. 
 
     
     
       17. The light-emitting device as claimed in  claim 16 , wherein material of the heat-conducting body is selected from the group consisting of silver, gold, copper, platinum, tin, aluminium, carbon nanotube, graphene and combinations thereof. 
     
     
       18. The light-emitting device as claimed in  claim 16  further comprising:
 a heat-dissipating base, wherein the base is disposed on the heat-dissipating base. 
 
     
     
       19. The light-emitting device as claimed in  claim 18 , wherein material of the heat-dissipating base is selected from the group consisting of aluminium, tin, copper, silver, gold, ceramic and combinations thereof. 
     
     
       20. The light-emitting device as claimed in  claim 16  further comprising:
 a reflective material layer, disposed on the heat-conducting body. 
 
     
     
       21. The light-emitting device as claimed in  claim 20 , wherein material of the reflective material layer is selected from the group consisting of silver, chromium, nickel, aluminium and combinations thereof. 
     
     
       22. The light-emitting device as claimed in  claim 20 , wherein the reflective material layer is a distributed Bragg reflector (DBR). 
     
     
       23. A light-emitting device, comprising:
 a light emitting base; 
 a wavelength converting material covering the light emitting base; and 
 a reflective and heat-conducting body connecting the light emitting base and the wavelength converting material, and the reflective and heat-conducting body being light-transmissive. 
 
     
     
       24. The light-emitting device as claimed in  claim 23 , wherein the light emitting base comprises:
 a base; and 
 at least one light-emitting element disposed on the base, wherein the base is connected to the carrier, and the wavelength converting material and the carrier cover the light-emitting element. 
 
     
     
       25. The light-emitting device as claimed in  claim 23 , wherein material of the carrier is selected from the group consisting of silver, gold, copper, platinum, aluminium, carbon nanotube, graphene and combinations thereof. 
     
     
       26. The light-emitting device as claimed in  claim 23  further comprising:
 a heat-dissipating base, wherein the light emitting base is disposed on the heat-dissipating base. 
 
     
     
       27. The light-emitting device as claimed in  claim 26 , wherein material of the heat-dissipating base is selected from the group consisting of aluminium, tin, copper, silver, gold, ceramic and combinations thereof. 
     
     
       28. The light-emitting device as claimed in  claim 23  further comprising:
 a reflective material layer, disposed on the carrier. 
 
     
     
       29. The light-emitting device as claimed in  claim 28 , wherein material of the reflective material layer is selected from the group consisting of silver, chromium, nickel, aluminium and combinations thereof. 
     
     
       30. The light-emitting device as claimed in  claim 28 , wherein the reflective material layer is a DBR. 
     
     
       31. The light-emitting device as claimed in  claim 23 , wherein the carrier occupies 5-40% of the surface area of the wavelength converting cover.

Cited by (0)

No later patents cite this yet.

References (0)

No backward citations on record.